<div style="display:flex;justify-content:space-around">
  <img src="3-funcs/stringer.jpg" height="100" />
  <img src="3-funcs/reader.png" height="100" />
  <img src="3-funcs/writer.png" height="100" />
  <img src="3-funcs/closer.jpg" height="100" />
</div>
